Security Digest · Vulnerability record · Known exploited
CVE-2024-44309: Apple Multiple Products Cross-Site Scripting (XSS) Vulnerability
Exploited in the wild (CISA KEV). A cookie management issue was addressed with improved state management.
CISA KEV · added 2024-11-21 CVSS 6.3 Medium EPSS 22.6% · p98
Should you act?
Exploited: patch now if you run it
CISA has confirmed exploitation in the wild. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- Yes, if you run Apple Multiple Products. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2024-11-21, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2024-12-12; treat that as the outer limit, not the target.
- EPSS 22.6%, percentile 98: FIRST’s model estimates a 22.6% chance of exploitation activity in the next 30 days, higher than 98% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Needs a user to click or open something. Phishing makes that realistic, but it is not wormable.
What it is
A cookie management issue was addressed with improved state management. This issue is fixed in Safari 18.1.1, iOS 17.7.2 and iPadOS 17.7.2, iOS 18.1.1 and iPadOS 18.1.1, macOS Sequoia 15.1.1, visionOS 2.1.1. Processing maliciously crafted web content may lead to a cross site scripting attack. Apple is aware of a report that this issue may have been actively exploited on Intel-based Mac systems.
CISA’s summary
Apple iOS, macOS, and other Apple products contain an unspecified vulnerability when processing maliciously crafted web content that may lead to a cross-site scripting (XSS) attack.
Weakness type: CWE-79.
Product: Apple Multiple Products · Assigned by: apple · Published: 2024-11-19
Affected and fixed versions
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| Apple | Safari | < 18.1.1 |
| Apple | iOS and iPadOS | < 17.7.2, < 18.1.1 |
| Apple | macOS | < 15.1.1 |
| Apple | visionOS | < 2.1.1 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADP | 3.1 | 6.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Privileges required: none (no login)
- User interaction: required (a user must click/open something)
- Scope: unchanged
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: added 2024-11-21; federal due date 2024-12-12. Known ransomware use: Unknown.
- CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active, automatable no, technical impact partial.
- FIRST EPSS (model of 2026-10-21): 22.59% probability of exploitation activity in the next 30 days; percentile 98.
Timeline
- — CVE record published by apple
- — Added to CISA’s Known Exploited Vulnerabilities catalog
- — CISA remediation deadline for US federal agencies
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vendor and project advisories, patches
- Listed in CISA KEV notes (support.apple.com) support.apple.com
- Listed in CISA KEV notes (support.apple.com) support.apple.com
- Listed in CISA KEV notes (support.apple.com) support.apple.com
- Listed in CISA KEV notes (support.apple.com) support.apple.com
- Listed in CISA KEV notes (support.apple.com) support.apple.com
Vulnerability records
- CVE.org record CVE-2024-44309 cve.org
- NVD entry CVE-2024-44309 nvd.nist.gov
Government
Other references from the CVE record and advisory
- lists.debian.org lists.debian.org
- seclists.org seclists.org
All exploited Apple vulnerabilities · Today’s Security Digest